Main deck (60) 4 Botanical Sanctum 4 Brazen Borrower 4 Breeding Pool 1 Castle Vantress 4 Gadwick, the Wizened 2 Harbinger of the Tides 2 Hinterland Harbor 4 Ipnu Rivulet 6 Island 3 Master of Waves 4 Merfolk Trickster 4 Mutavault 2 Mystical Dispute 3 Omen of the Sea 4 Opt 4 Risen Reef 2 Unsummon 1 Uro, Titan of Nature's Wrath 2 Wizard's Retort Sideboard (15) 4 Aether Gust 2 Annul 1 Disdainful Stroke 3 Entrancing Melody 1 Harbinger of the Tides 2 Mystical Dispute 2 Pithing Needle